Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Weng-Chiang declares the Doctor’s fate
S14E24
·
The Talons of Weng-Chiang Part 4
To
Chang kills Casey with the cabinet
S14E24
·
The Talons of Weng-Chiang Part 4
Why These Connect
The narrative assertion
"Weng-Chiang’s assertion that he will 'deal with [the Doctor] himself' foreshadows his personal involvement in the murder of Casey during Chang’s act — not through Chang’s hand in the cellar, but via Weng-Chiang’s direct psychic or temporal intervention, making Casey’s death a fulfillment of Weng-Chiang’s earlier threat."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.